jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

jaysonsantos

extern crate ring;

use ring::aead::*;
use ring::pbkdf2::*;
use ring::rand::SystemRandom;

fn main() {
    // The password will be used to generate a key
    let password = b"nice password";

mjhea0

from datetime import datetime
from sqlalchemy import Column, Integer, DateTime, ForeignKey
from sqlalchemy.orm import relationship
from sqlalchemy.ext.declarative import declared_attr
from flask_security import current_user


class AuditMixin(object):
    created_at = Column(DateTime, default=datetime.now)
    updated_at = Column(DateTime, default=datetime.now, onupdate=datetime.now)

UedaTakeyuki

# http://eleparts.co.kr/data/design/product_file/SENSOR/gas/MH-Z19_CO2%20Manual%20V2.pdf
# http://qiita.com/UedaTakeyuki/items/c5226960a7328155635f
import serial
import time

def mh_z19():
  ser = serial.Serial('/dev/ttyAMA0',
                      baudrate=9600,
                      bytesize=serial.EIGHTBITS,
                      parity=serial.PARITY_NONE,

pardo

def debounced_wrap(func):
    @functools.wraps(func)
    def wrapper(*args, **kwargs):
        key = kwargs.pop("key")  # it's required
        call_count = kwargs.pop("call_count", 1)
        count = cache.get(key, 1)
        if count > call_count:
            # someone called the function again before the this was executed
            return None
        # I'm the last call

sehmaschine

from apps.images.signals import image_callback

def entry_upload_path(instance, filename):
    return os.path.join("uploads", "blog", str(instance.id), filename)

class Entry(models.Model):
    image = FileBrowseUploadField(max_length=250, upload_to=entry_upload_path)

post_save.connect(image_callback, sender=Entry)

aisamanra

#![feature(unboxed_closures)]
#![feature(core)]
#![feature(io)]

use std::old_io::stdio::{stdin};
use std::collections::HashMap;

// This is our toy state example.
#[derive(Debug)]
struct State {

shymonk

Customize Save In Django Admin Inline Form

Background

This is a common case in django ORM.

from django.db import models

class Author(models.Model):

mikhailov

events {
  worker_connections  1024;
}

http {
  default_type       text/html;
  access_log         /dev/stdout;
  sendfile           on;
  keepalive_timeout  65;